/*
 * Copyright (c) 1993, 1994 by Chris Provenzano, proven@mit.edu
 * Copyright (c) 1995-1998 by John Birrell <jb@cimlogic.com.au>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *  This product includes software developed by Chris Provenzano.
 * 4. The name of Chris Provenzano may not be used to endorse or promote
 *    products derived from this software without specific prior written
 *    permission.
 *
 * THIS SOFTWARE IS PROVIDED BY CHRIS PROVENZANO ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL CHRIS PROVENZANO BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * $FreeBSD$
 */
#ifndef _PTHREAD_H_
#define _PTHREAD_H_

/*
 * Header files.
 */
#include <sys/cdefs.h>
#include <sys/_pthreadtypes.h>
#ifdef WOCSTDLIB
#include <sys/timespec.h>
#include <sched.h>
#endif
//#include <time.h>

/*
 * Run-time invariant values:
 */
#define PTHREAD_DESTRUCTOR_ITERATIONS 4
#define PTHREAD_KEYS_MAX 256
#define PTHREAD_STACK_MIN __MINSIGSTKSZ
#define PTHREAD_THREADS_MAX __ULONG_MAX
#define PTHREAD_BARRIER_SERIAL_THREAD -1

/*
 * Flags for threads and thread attributes.
 */
#define PTHREAD_DETACHED 0x1
#define PTHREAD_SCOPE_SYSTEM 0x2
#define PTHREAD_INHERIT_SCHED 0x4
#define PTHREAD_NOFLOAT 0x8

#define PTHREAD_CREATE_DETACHED PTHREAD_DETACHED
#define PTHREAD_CREATE_JOINABLE 0
#define PTHREAD_SCOPE_PROCESS 0
#define PTHREAD_EXPLICIT_SCHED 0

/*
 * Flags for read/write lock attributes
 */
#define PTHREAD_PROCESS_PRIVATE 0
#define PTHREAD_PROCESS_SHARED 1

/*
 * Flags for cancelling threads
 */
#define PTHREAD_CANCEL_ENABLE 0
#define PTHREAD_CANCEL_DISABLE 1
#define PTHREAD_CANCEL_DEFERRED 0
#define PTHREAD_CANCEL_ASYNCHRONOUS 2
#define PTHREAD_CANCELED ((void*)1)

/*
 * Flags for once initialization.
 */
#define PTHREAD_NEEDS_INIT 0
#define PTHREAD_DONE_INIT 1

/*
 * Static once initialization values.
 */
#define PTHREAD_ONCE_INIT \
    { PTHREAD_NEEDS_INIT, NULL }

/*
 * Static initialization values.
 */
#define PTHREAD_MUTEX_INITIALIZER NULL
#define PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP ((pthread_mutex_t)1)
#define PTHREAD_COND_INITIALIZER NULL
#define PTHREAD_RWLOCK_INITIALIZER NULL

/*
 * Default attribute arguments (draft 4, deprecated).
 */
#ifndef PTHREAD_KERNEL
#define pthread_condattr_default NULL
#define pthread_mutexattr_default NULL
#define pthread_attr_default NULL
#endif

#define PTHREAD_PRIO_NONE 0
#define PTHREAD_PRIO_INHERIT 1
#define PTHREAD_PRIO_PROTECT 2

/*
 * Mutex types (Single UNIX Specification, Version 2, 1997).
 *
 * Note that a mutex attribute with one of the following types:
 *
 *  PTHREAD_MUTEX_NORMAL
 *  PTHREAD_MUTEX_RECURSIVE
 *
 * will deviate from POSIX specified semantics.
 */
enum pthread_mutextype {
    PTHREAD_MUTEX_ERRORCHECK = 1, /* Default POSIX mutex */
    PTHREAD_MUTEX_RECURSIVE = 2, /* Recursive mutex */
    PTHREAD_MUTEX_NORMAL = 3, /* No error checking */
    PTHREAD_MUTEX_ADAPTIVE_NP = 4, /* Adaptive mutex, spins briefly before blocking on lock */
    PTHREAD_MUTEX_TYPE_MAX
};

#define PTHREAD_MUTEX_DEFAULT PTHREAD_MUTEX_ERRORCHECK

struct _pthread_cleanup_info {
    uintptr_t pthread_cleanup_pad[8];
};

/*
 * Thread function prototype definitions:
 */
__BEGIN_DECLS
int pthread_atfork(void (*)(void), void (*)(void), void (*)(void));
int pthread_attr_destroy(pthread_attr_t*);
int pthread_attr_getstack(const pthread_attr_t* __restrict, void** __restrict, size_t* __restrict);
int pthread_attr_getstacksize(const pthread_attr_t*, size_t*);
int pthread_attr_getguardsize(const pthread_attr_t*, size_t*);
int pthread_attr_getstackaddr(const pthread_attr_t*, void**);
int pthread_attr_getdetachstate(const pthread_attr_t*, int*);
int pthread_attr_init(pthread_attr_t*);
int pthread_attr_setstacksize(pthread_attr_t*, size_t);
int pthread_attr_setguardsize(pthread_attr_t*, size_t);
int pthread_attr_setstack(pthread_attr_t*, void*, size_t);
int pthread_attr_setstackaddr(pthread_attr_t*, void*);
int pthread_attr_setdetachstate(pthread_attr_t*, int);
int pthread_barrier_destroy(pthread_barrier_t*);
int pthread_barrier_init(pthread_barrier_t*, const pthread_barrierattr_t*, unsigned);
int pthread_barrier_wait(pthread_barrier_t*);
int pthread_barrierattr_destroy(pthread_barrierattr_t*);
int pthread_barrierattr_getpshared(const pthread_barrierattr_t*, int*);
int pthread_barrierattr_init(pthread_barrierattr_t*);
int pthread_barrierattr_setpshared(pthread_barrierattr_t*, int);

#define pthread_cleanup_push(cleanup_routine, cleanup_arg)                           \
    {                                                                                \
        struct _pthread_cleanup_info __cleanup_info__;                               \
        __pthread_cleanup_push_imp(cleanup_routine, cleanup_arg, &__cleanup_info__); \
        {
#define pthread_cleanup_pop(execute)    \
    (void)0;                            \
    }                                   \
    __pthread_cleanup_pop_imp(execute); \
    }

int pthread_condattr_destroy(pthread_condattr_t*);
#if 0
int     pthread_condattr_getclock(const pthread_condattr_t *,
            clockid_t *);
int     pthread_condattr_setclock(pthread_condattr_t *, clockid_t);
int     pthread_getcpuclockid(pthread_t, clockid_t *);
#endif
int pthread_condattr_getpshared(const pthread_condattr_t*, int*);
int pthread_condattr_init(pthread_condattr_t*);
int pthread_condattr_setpshared(pthread_condattr_t*, int);
int pthread_cond_broadcast(pthread_cond_t*);
int pthread_cond_destroy(pthread_cond_t*);
int pthread_cond_init(pthread_cond_t*, const pthread_condattr_t*);
int pthread_cond_signal(pthread_cond_t*);
int pthread_cond_timedwait(pthread_cond_t*, pthread_mutex_t* __mutex, const struct timespec*) __requires_exclusive(*__mutex);
int pthread_cond_wait(pthread_cond_t*, pthread_mutex_t* __mutex) __requires_exclusive(*__mutex);
int pthread_create(pthread_t*, const pthread_attr_t*, void* (*)(void*), void*);
int pthread_detach(pthread_t);
int pthread_equal(pthread_t, pthread_t);
void pthread_exit(void*) __dead2;
void* pthread_getspecific(pthread_key_t);
int pthread_join(pthread_t, void**);
int pthread_key_create(pthread_key_t*, void (*)(void*));
int pthread_key_delete(pthread_key_t);
int pthread_mutexattr_init(pthread_mutexattr_t*);
int pthread_mutexattr_destroy(pthread_mutexattr_t*);
int pthread_mutexattr_getpshared(const pthread_mutexattr_t*, int*);
int pthread_mutexattr_gettype(pthread_mutexattr_t*, int*);
int pthread_mutexattr_settype(pthread_mutexattr_t*, int);
int pthread_mutexattr_setpshared(pthread_mutexattr_t*, int);
int pthread_mutex_destroy(pthread_mutex_t* __mutex) __requires_unlocked(*__mutex);
int pthread_mutex_init(pthread_mutex_t* __mutex, const pthread_mutexattr_t*) __requires_unlocked(*__mutex);
int pthread_mutex_lock(pthread_mutex_t* __mutex) __locks_exclusive(*__mutex);
int pthread_mutex_trylock(pthread_mutex_t* __mutex) __trylocks_exclusive(0, *__mutex);
int pthread_mutex_timedlock(pthread_mutex_t* __mutex, const struct timespec*) __trylocks_exclusive(0, *__mutex);
int pthread_mutex_unlock(pthread_mutex_t* __mutex) __unlocks(*__mutex);
int pthread_once(pthread_once_t*, void (*)(void));
int pthread_rwlock_destroy(pthread_rwlock_t* __rwlock) __requires_unlocked(*__rwlock);
int pthread_rwlock_init(pthread_rwlock_t* __rwlock, const pthread_rwlockattr_t*) __requires_unlocked(*__rwlock);
int pthread_rwlock_rdlock(pthread_rwlock_t* __rwlock) __locks_shared(*__rwlock);
int pthread_rwlock_timedrdlock(pthread_rwlock_t* __rwlock, const struct timespec*) __trylocks_shared(0, *__rwlock);
int pthread_rwlock_timedwrlock(pthread_rwlock_t* __rwlock, const struct timespec*) __trylocks_exclusive(0, *__rwlock);
int pthread_rwlock_tryrdlock(pthread_rwlock_t* __rwlock) __trylocks_shared(0, *__rwlock);
int pthread_rwlock_trywrlock(pthread_rwlock_t* __rwlock) __trylocks_exclusive(0, *__rwlock);
int pthread_rwlock_unlock(pthread_rwlock_t* __rwlock) __unlocks(*__rwlock);
int pthread_rwlock_wrlock(pthread_rwlock_t* __rwlock) __locks_exclusive(*__rwlock);
int pthread_rwlockattr_destroy(pthread_rwlockattr_t*);
int pthread_rwlockattr_getkind_np(const pthread_rwlockattr_t*, int*);
int pthread_rwlockattr_getpshared(const pthread_rwlockattr_t*, int*);
int pthread_rwlockattr_init(pthread_rwlockattr_t*);
int pthread_rwlockattr_setkind_np(pthread_rwlockattr_t*, int);
int pthread_rwlockattr_setpshared(pthread_rwlockattr_t*, int);
pthread_t pthread_self(void);
int pthread_setspecific(pthread_key_t, const void*);

int pthread_spin_init(pthread_spinlock_t* __spin, int) __requires_unlocked(*__spin);
int pthread_spin_destroy(pthread_spinlock_t* __spin) __requires_unlocked(*__spin);
int pthread_spin_lock(pthread_spinlock_t* __spin) __locks_exclusive(*__spin);
int pthread_spin_trylock(pthread_spinlock_t* __spin) __trylocks_exclusive(0, *__spin);
int pthread_spin_unlock(pthread_spinlock_t* __spin) __unlocks(*__spin);
int pthread_cancel(pthread_t);
int pthread_kill(pthread_t, int);
int pthread_setcancelstate(int, int*);
int pthread_setcanceltype(int, int*);
void pthread_testcancel(void);

#if __BSD_VISIBLE
int pthread_getprio(pthread_t);
int pthread_setprio(pthread_t, int);
void pthread_yield(void);
#endif

int pthread_mutexattr_getprioceiling(pthread_mutexattr_t*, int*);
int pthread_mutexattr_setprioceiling(pthread_mutexattr_t*, int);
int pthread_mutex_getprioceiling(pthread_mutex_t*, int*);
int pthread_mutex_setprioceiling(pthread_mutex_t*, int, int*);

int pthread_mutexattr_getprotocol(pthread_mutexattr_t*, int*);
int pthread_mutexattr_setprotocol(pthread_mutexattr_t*, int);

int pthread_attr_getinheritsched(const pthread_attr_t*, int*);
int pthread_attr_getschedparam(const pthread_attr_t*, struct sched_param*);
int pthread_attr_getschedpolicy(const pthread_attr_t*, int* policy);
int pthread_attr_getscope(const pthread_attr_t*, int*);
int pthread_attr_setinheritsched(pthread_attr_t*, int);
int pthread_attr_setschedparam(pthread_attr_t*, const struct sched_param*);
int pthread_attr_setschedpolicy(pthread_attr_t*, int);
int pthread_attr_setscope(pthread_attr_t*, int);
int pthread_getschedparam(pthread_t pthread, int*, struct sched_param*);
int pthread_setschedparam(pthread_t, int, const struct sched_param*);
#if __XSI_VISIBLE
int pthread_getconcurrency(void);
int pthread_setconcurrency(int);
#endif

void __pthread_cleanup_push_imp(void (*)(void*), void*, struct _pthread_cleanup_info*);
void __pthread_cleanup_pop_imp(int);
__END_DECLS

#endif
